Thank you for viewing. I have never used this item since I purchased it two years ago. I am selling it because I will not have the opportunity to use it in the future. GULL AQUAα boots with zippers, size 25.5cm, perfect for diving. Product Name: GA-5642C GS Boots Men's Diving Boots - Brand: GULL - Size: 25.5cm - Model: AQUAα - Features: Boots for open-heel fins (strap fins) made considering the characteristics of GULL rubber fins and fin work. With a wide range of sizes in 0.5cm increments and excellent hold, the size is designed to fit the average Japanese male build. Applicable for various marine sports such as scuba diving and skin diving. - Uses: Diving, Snorkeling